Date: Mon, 18 Jun 2018 19:34:34 +0000 (UTC) From: Ed Maste <emaste@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r335333 - head/sys/arm64/linux Message-ID: <201806181934.w5IJYYVo032249@repo.freebsd.org>
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Author: emaste Date: Mon Jun 18 19:34:34 2018 New Revision: 335333 URL: https://svnweb.freebsd.org/changeset/base/335333 Log: Introduce arm64 linuxulator stubs This provides stub implementations of arm64 Linux vdso and machdep, ptrace, and futex sufficient for executing an arm64 Linux 'hello world' binary. Reviewed by: andrew Sponsored by: Turing Robotic Industries Differential Revision: https://reviews.freebsd.org/D15832 Added: head/sys/arm64/linux/linux_locore.s (contents, props changed) head/sys/arm64/linux/linux_machdep.c (contents, props changed) head/sys/arm64/linux/linux_ptrace.c (contents, props changed) head/sys/arm64/linux/linux_support.s (contents, props changed) Added: head/sys/arm64/linux/linux_locore.s ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/linux/linux_locore.s Mon Jun 18 19:34:34 2018 (r335333) @@ -0,0 +1,58 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (C) 2018 Turing Robotic Industries Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* + * arm64 Linux VDSO implementation. + */ + +#include <machine/asm.h> + + .data + + .globl linux_platform +linux_platform: + .asciz "arm64" + + .text + +ENTRY(__kernel_rt_sigreturn) + brk #0 /* LINUXTODO: implement __kernel_rt_sigreturn */ + ret + +ENTRY(__kernel_gettimeofday) + brk #0 /* LINUXTODO: implement __kernel_gettimeofday */ + ret + +ENTRY(__kernel_clock_gettime) + brk #0 /* LINUXTODO: implement __kernel_clock_gettime */ + ret + +ENTRY(__kernel_clock_getres) + brk #0 /* LINUXTODO: implement __kernel_clock_getres */ + ret Added: head/sys/arm64/linux/linux_machdep.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/linux/linux_machdep.c Mon Jun 18 19:34:34 2018 (r335333) @@ -0,0 +1,132 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2018 Turing Robotic Industries Inc. + * Copyright (c) 2000 Marcel Moolenaar + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/fcntl.h> +#include <sys/imgact.h> +#include <sys/ktr.h> +#include <sys/proc.h> +#include <sys/sdt.h> + +#include <arm64/linux/linux.h> +#include <arm64/linux/linux_proto.h> +#include <compat/linux/linux_dtrace.h> +#include <compat/linux/linux_emul.h> +#include <compat/linux/linux_misc.h> +#include <compat/linux/linux_mmap.h> +#include <compat/linux/linux_util.h> + +/* DTrace init */ +LIN_SDT_PROVIDER_DECLARE(LINUX_DTRACE); + +/* DTrace probes */ +LIN_SDT_PROBE_DEFINE0(machdep, linux_set_upcall_kse, todo); +LIN_SDT_PROBE_DEFINE0(machdep, linux_mmap2, todo); +LIN_SDT_PROBE_DEFINE0(machdep, linux_rt_sigsuspend, todo); +LIN_SDT_PROBE_DEFINE0(machdep, linux_sigaltstack, todo); +LIN_SDT_PROBE_DEFINE0(machdep, linux_set_cloned_tls, todo); + +/* + * LINUXTODO: deduplicate; linux_execve is common across archs, except that on + * amd64 compat linuxulator it calls freebsd32_exec_copyin_args. + */ +int +linux_execve(struct thread *td, struct linux_execve_args *uap) +{ + struct image_args eargs; + char *path; + int error; + + LCONVPATHEXIST(td, uap->path, &path); + + error = exec_copyin_args(&eargs, path, UIO_SYSSPACE, uap->argp, + uap->envp); + free(path, M_TEMP); + if (error == 0) + error = linux_common_execve(td, &eargs); + return (error); +} + +/* LINUXTODO: implement (or deduplicate) arm64 linux_set_upcall_kse */ +int +linux_set_upcall_kse(struct thread *td, register_t stack) +{ + + LIN_SDT_PROBE0(machdep, linux_set_upcall_kse, todo); + return (EDOOFUS); +} + +/* LINUXTODO: deduplicate arm64 linux_mmap2 */ +int +linux_mmap2(struct thread *td, struct linux_mmap2_args *uap) +{ + + LIN_SDT_PROBE0(machdep, linux_mmap2, todo); + return (linux_mmap_common(td, PTROUT(uap->addr), uap->len, uap->prot, + uap->flags, uap->fd, uap->pgoff)); +} + +int +linux_mprotect(struct thread *td, struct linux_mprotect_args *uap) +{ + + return (linux_mprotect_common(td, PTROUT(uap->addr), uap->len, + uap->prot)); +} + +/* LINUXTODO: implement arm64 linux_rt_sigsuspend */ +int +linux_rt_sigsuspend(struct thread *td, struct linux_rt_sigsuspend_args *uap) +{ + + LIN_SDT_PROBE0(machdep, linux_rt_sigsuspend, todo); + return (EDOOFUS); +} + +/* LINUXTODO: implement arm64 linux_sigaltstack */ +int +linux_sigaltstack(struct thread *td, struct linux_sigaltstack_args *uap) +{ + + LIN_SDT_PROBE0(machdep, linux_sigaltstack, todo); + return (EDOOFUS); +} + +/* LINUXTODO: implement arm64 linux_set_cloned_tls */ +int +linux_set_cloned_tls(struct thread *td, void *desc) +{ + + LIN_SDT_PROBE0(machdep, linux_set_cloned_tls, todo); + return (EDOOFUS); +} Added: head/sys/arm64/linux/linux_ptrace.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/linux/linux_ptrace.c Mon Jun 18 19:34:34 2018 (r335333) @@ -0,0 +1,56 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (C) 2018 Turing Robotic Industries Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/kernel.h> +#include <sys/sdt.h> +#include <sys/proc.h> +#include <sys/ptrace.h> + +#include <arm64/linux/linux.h> +#include <arm64/linux/linux_proto.h> +#include <compat/linux/linux_dtrace.h> + +/* DTrace init */ +LIN_SDT_PROVIDER_DECLARE(LINUX_DTRACE); + +/* DTrace probes */ +LIN_SDT_PROBE_DEFINE0(ptrace, linux_ptrace, todo); + +int +linux_ptrace(struct thread *td, struct linux_ptrace_args *uap) +{ + + /* LINUXTODO: implement arm64 linux_ptrace */ + LIN_SDT_PROBE0(ptrace, linux_ptrace, todo); + return (EDOOFUS); +} Added: head/sys/arm64/linux/linux_support.s ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/arm64/linux/linux_support.s Mon Jun 18 19:34:34 2018 (r335333) @@ -0,0 +1,57 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (C) 2018 Turing Robotic Industries Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include "linux_assym.h" +#include <machine/asm.h> + +#include "assym.inc" + +/* + * LINUXTODO: implement futex_* + */ + +ENTRY(futex_xchgl) + brk #0 + ret + +ENTRY(futex_addl) + brk #0 + ret + +ENTRY(futex_orl) + brk #0 + ret + +ENTRY(futex_andl) + brk #0 + ret + +ENTRY(futex_xorl) + brk #0 + ret
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